Insomnolentadjective
characterized by an inability to sleep, experiencing insomnia.
Insomnianoun
A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.
Insomnianoun
Lack of sleep; inability to sleep, especially when chronic; wakefulness; sleeplessness.
Insomnianoun
an inability to sleep; chronic sleeplessness
Insomnia
Insomnia, also known as sleeplessness, is a sleep disorder in which people have trouble sleeping. They may have difficulty falling asleep, or staying asleep as long as desired.